Magnetic separator



' May 26 1925. 1,539,640

E. H. BRUNE MAGNETIC SEPARATOR Filed July 21. 1924 Patented May 26,1925.

UNITED STATES ED'WARD H. BRUNE, OF ST. LOUIS, MISSOURI.

MAGNETIC SEPARATOR.

Application filed July 21,

use of all kinds, grain, etc. (Ether obyects of the invention are toprorule a in gnetic separator operable in proximity to a. moving line ofgarbage, or other refuse, for picking out all bodi s, elements orparticles which are susceptible to the influence of a magnet; to providea cone shape interceptor so disposed to the line of travel of thegarbage or other refuse that the larger bodies will be first picked upwhile the remainder are gradually intercepted according to their sizesuntil the garbage, or other refuse, is ultimately free of all bodies,elements or particles susceptible to the influence of n'iagnetism; andto provide an interceptor-which ultimately spreads the garbage or otherrefuse to positively delete bodies or elements, as described above,therefrom, suitable means being provided to constantly relieve theinterceptor from the adhering bodies, or objects.

Other objects of this invention will be apparent from the followingdescription of the present preferred form of the invention taken inconnection with the accommarrying drawings wherein Fig. 1 is a sideelevational view of a magnetic interceptor constructed in accordancewith this invention illustrating its application; 7

F i g. 2 is a fragmentary top plan view of the interceptor illustratingits application; and v Fig. 8 is an end elevational view of the same.

In the drawings, a base supporting structure t is shown which may bemade of metal and of any desired configuration and is equipped with asuperstructure generally designated 5 which supports a plurality ofrollers 6 upon which a belt 7 is movably mounted. The belt in thepresent instance shown to be of the endless type and is 1924. Serial No.727,187.

trained around one or more pulleysmounted upon the supporting structure4. By disposing the rollers 6 at an inclination the marginal edges ofthe belt 7 are flexed upwardly to prevent displacement of the garbage,or other refuse, over the margins of the belt. It is to be understoodthat the base supporting structure at, superstructure 5, rollers 6, belt7 and pulleys S are all well known in the art and are shown hereinmerely to illustrate the application of he invention. The belt isadapted to receive garbage or other refuse, grain or like materials, andmoves in the direction indicated by the arrow inl ig. 1. It is desirableto relieve garbage of all metallic elements or sub-- stances if possiblesince, as is now well known, garbage is universally used a hog food andis frequently treatedby various processes for deleting certain foodconstituents therefrom for poultry and cattlefood. It has been foundfrom experiment that glass is uninjurious to hogs and hence does not ofnecessity have to be removed from the garbage, but metallic substancescannot, of course, be masticated and are manifestly undesirable. Inaddition to this literally tons of metallic elements, such as knives,

forks, spoons and silver of all kinds are anly the purport of thepresent invention to employ mechanism which may be utilized for all thepurposes above recited.

The magnetic separator per se consists of a conically shaped drum 9 madeof a suitable material such as brass, lead, rubber composition or woodand is rotatably mounted on supporting standards 10. The standards 10are carried by the superstructure 5 as illustrated to advantage in Fig.3.

Fixedly mounted within the drum 9 is a magnetic segment 11 which may befed by a motor or other suitable means which will keep the segmentconstantly magnetized. The segment 11 is conical shape in elevation soas to conform to the contour of the drum 9 and is of substantially thesame length as the latter so that the drum 9 will be magnetized by thesegment 11. The area or field of magnetic influence covered by the drum9 will correspond substantially to the portion thereof which lies inproximity to the periphery of the segment, leaving a part of the drumwhich is not energized.

:Upon reference to Fig. 1 of the drawings it will be noted that the drum9 is positioned immediately above the belt 7 and has its longitudinalaxis arranged to lie parallel with the longitudinal axis of the belt.

The small end of the cone is-arranged to lie in the direction ofmovement of the upi perrun of the belt so that relatively large objectssusceptible to magnetic influence will be first intercepted and causedto adhere to the periphery of the drum 9. In graded sequence otherobjects susceptible to magnetism will be picked up by the drum untilultimately the large end of the drum comes into such closeproximity tothe belt as to positively intercept very small particles or bodiessusceptible to magnetic in iluence. of the drum acts as a spreader so asto scatter the garbage, refuse, or other materiwhich may be carried by apair of the standards 10 at one side of the drum preferably at a pointwhere the drum is feebly mag-v netic, as shown in Fig. 3. The scrapermay be of any desired construction but preferably impinges against thedrum to disengage objects from the latter. By preference, the

scraper is relatively wideto serve as a deflector for deflecting theOl)]CCl1S away from the drum after they have been removed from thelatter.

It is to be umlerstood that the drum 9 and correspondingly then'iagnetic segment 1.1

may be of any desired size, but by preference the diameter of the largeend of the.

drum appreciably protrudes beyond the margins of the belt 7 topositively traverse the complete lateral extent of the belt andeliminate the possibility of bodies or particles, especially those Whichare feebly magnetic, from passing 'on the belt unapprebonded by thedrum. Moreover the drum 9 may be rotated in any desired manner andthrough the instrumentallty of any desired In addition to this, thelarge end.

the scope of theclaims hereto appended.

' What is claimed is 1. In combination with a movable belt for conveyinggarbage, refuse, etc., a cone shape interceptor mounted above 'said beltand having its longitudinalaxis arranged to lie parallel to thelongitudinal axis of said belt for removing various sized bodies ofpredetermined characteristics from said garbage.

2. In combination with a movable belt for carrying garbage, refuse,etc.,'a magnetized drum rotatabl mounted above said belt to interceptmeta lie objects carried by the lat ter, said drum being cone shaped andhaving its longitudinal axis arranged to lie parallel with thelongitudinal axis of the belt for intercepting metallic bodies insequenceaccording to their sizes. 7

3. In combination with a movable belt for conveying garbage, refuse,etc, a cone shape metallic drumrevolubly mounted above said belt havingits longitudinal axis arranged to lie parallel with the longitudinalaxis of the latter, a magnetized segment fixedly mounted within saiddrum to energize a prede-' termined portion of thelatter, and a scraperimpinging against said drum at a point free from thedirect influence ofsaid segment.

4. In combination with a movable belt for conveying garbage, refuse,etc., a cone shape magnetized drum arranged above said belt having thesmall end thereof appreciably spaced from the belt and the large endarranged in close proximity to the latter sub-' stantially as described.V I y I 5. In combination with a movable belt for conveying garbage,refuse, etc, a cone shaped magnetized drum rotatably mounted above saidbelt having. its smaller end arranged to lie in the direction ofmovement of said garbage, refuse, etc., the surface of the drum lying atan angle to the plane of the conveyor.

6,. In combination with a movable belt, a V

magnetized drum rotatably mounted above .said belt the axis of whichextends length wise of the belt, one portion of the periphery of saiddrum being disposed to lie in close proximity to the belt and anotherportion of the periphery of the drum being disposed to lie at a pointremote from the belt.

In testimony whereof I afiix my scaly EDIVARD H. BRUNE.

